Medication Adherence Assessment Questionnaire (MAS-12) Test
Understand what helps or hinders taking meds as prescribed in about 2 minutes. Get clear, actionable insights to target support and strengthen treatment results.
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08:30
Scale Explorer
How the Scales are Structured
DATA-BASED USER COHORTS
Who Usually Takes This Test?
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
RESULTS YOU CAN ACTUALLY USE
Benchmarking
See How You Compare
Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Below is a preview of how scores are typically distributed across each scale.
Consent to take medications (Cttm)
Average
7.2
Normal range
6.1 — 8.4
min.
2
max.
10
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Readiness to Receive Information (RtRI)
Average
5.6
Normal range
4.6 — 6.6
min.
2
max.
10
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Collaboration with healthcare professionals (Cwhp)
Average
10.6
Normal range
8.4 — 12.8
min.
3
max.
15
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Maintaining a routine (Mar)
Average
6.5
Normal range
4.7 — 8.2
min.
3
max.
15
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Overall treatment adherence score (Otas)
Average
27.8
Normal range
22.9 — 32.7
min.
10
max.
50
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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CLEAR ANSWERS TO COMMON QUESTIONS
Frequently Asked Questions
What does this questionnaire measure?
It screens for how consistently prescribed medicines are taken and what factors interfere with regular use. It covers both practical obstacles and beliefs about treatment.
How long does it take to complete?
Completion typically takes about 2 minutes. Responses should be given quickly and without overthinking.
How many questions are included?
It contains 12 items. Each item asks about common situations that can affect taking medicines as directed.
How should responses be provided?
Answer each item honestly based on recent, typical behavior. Select the option that best matches what usually happens.
How are results used?
Scores help identify areas where added support may improve adherence, such as clearer instructions or help with routines. Results are used to guide follow-up, not to make a diagnosis.
WHAT THE TEST MEASURES
About This Assessment
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Medication Adherence Assessment Questionnaire (MAS-12) Test - Symptoms and Signs
This questionnaire is a brief self-report tool used to screen for barriers to taking prescribed medications as directed. The Medication Adherence Assessment Questionnaire (MAS-12) is intended to support clinical conversations about adherence-related behaviors and common obstacles (e.g., forgetfulness, doubts about benefit, or practical difficulties).
It consists of 10 items and typically takes about 2 minutes to complete. Responses may help identify areas where additional education, problem-solving, or regimen support is needed and can be used to inform follow-up assessment or care planning.
In clinical or outpatient settings, the Medication Adherence Assessment Questionnaire (MAS-12) may be administered as part of routine monitoring to flag potential nonadherence and guide targeted intervention.
Author: donald-e-morisky
Literature: DiMatteo, M. R. Variations in patients’ adherence to medical recommendations: A quantitative review of 50 years of research. Medical Care. 2004.; Ueno, H., Yamazaki, Y., Yonekura, Y., Park, M. J., Ishikawa, H., & Kiuchi, T. Reliability and validity of a 12-item medication adherence scale for patients with chronic disease in Japan. BMC Health Services Research. 2018.
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